The following bibliography has been generated by bringing together all references provided by our content partners. There may be duplication.
- Michener, Charles D. 2000. The Bees of the World. xiv + 913
- Michener, Charles D. 2007. The Bees of the World, Second Edition. xvi + 953
- Smith, F., 1857, Catalogue of the hymenopterous insects collected at Sarawak, Borneo; Mount Ophir, Malacca; and at Singapore, by A. R. Wallace., Journal of the Proceedings of the Linnean Society of London, Zoology, pp. 42-88, vol. 2